implement GetSize

(also remove outdated comment, all values are []byte now)

datastore.go

@@ -54,8 +54,6 @@ func NewDatastore(path string, opts *Options) (*datastore, error) {
 	}, nil
 }
 
-// Returns ErrInvalidType if value is not of type []byte.
-//
 // Note: using sync = false.
 // see http://godoc.org/github.com/syndtr/goleveldb/leveldb/opt#WriteOptions
 func (d *datastore) Put(key ds.Key, value []byte) (err error) {
@@ -73,6 +71,10 @@ func (d *datastore) Get(key ds.Key) (value []byte, err error) {
 	return val, nil
 }
 
+func (d *datastore) GetSize(key ds.Key) (size int, err error) {
+	return ds.GetBackedSize(d, key)
+}
+
 func (d *datastore) Has(key ds.Key) (exists bool, err error) {
 	return d.DB.Has(key.Bytes(), nil)
 }

ds_test.go

@@ -7,6 +7,7 @@ import (
 
 	ds "github.com/ipfs/go-datastore"
 	dsq "github.com/ipfs/go-datastore/query"
+	dstest "github.com/ipfs/go-datastore/test"
 )
 
 var testcases = map[string]string{
@@ -223,3 +224,9 @@ func TestDiskUsageInMem(t *testing.T) {
 		t.Fatal("inmem dbs have 0 disk usage")
 	}
 }
+
+func TestSuite(t *testing.T) {
+	d := newDSMem(t)
+	defer d.Close()
+	dstest.SubtestAll(t, d)
+}

package.json

@@ -21,9 +21,9 @@
     },
     {
       "author": "jbenet",
-      "hash": "QmUyz7JTJzgegC6tiJrfby3mPhzcdswVtG4x58TQ6pq8jV",
+      "hash": "QmaRb5yNXKonhbkpNxNawoydk4N6es6b4fPj19sjEKsh5D",
       "name": "go-datastore",
-      "version": "3.2.0"
+      "version": "3.4.0"
     }
   ],
   "gxVersion": "0.8.0",